IE7中window.open()之后的权限被拒绝 [英] Permission denied after window.open() in IE7
问题描述
我们有一个带有嵌入式IE控件的winforms应用程序.
We have a winforms application with an embedded IE control.
在此IE控件中，我们运行一个Web应用程序(我控制该Web应用程序，但不控制Winforms应用程序).
In this IE control, we run a web application (I control the web application but not the winforms application).
在Web应用程序中，我运行一些javascript打开一个子窗口并用HTML填充它:
In the web application, I run some javascript to open a sub-window and populate it with HTML:
var features = "menubar=no,location=no,resizable,scrollbars,status=no,width=800,height=600,top=10,left=10";
newTarget = "reportWin" + String ( Math.random () * 1000000000000 ).replace( /\./g ,"" );
reportWindow = window.open('', newTarget, features);
var d = reportWindow.document; // <-- Exception is thrown here
d.open();
d.write('<head>\r\n<title>\r\n...\r\n</title>\r\n</head>');
d.write('<body style="height: 90%;">\r\n<table style="height: 100%; width: 100%;" border="0">\r\n<tr>\r\n<td align="center" valign="middle" style="text-align:center;">\r\n');
d.write(...);
d.close();
当我们在此WinForms应用程序中运行Web应用程序时(而不是单独运行，也未在另一个WinForms应用程序中运行)，我们在指示的行上出现Javascript错误:
When we run the web application within this WinForms app (but not by itself nor in another WinForms app) we get a Javascript error at the indicated line:
Line 0: Access denied
关于为什么会发生或如何避免的任何想法?请注意，该窗口未打开URL.这只是一个空窗口.
Any ideas on why this could be happening or on how I could avoid it? Note that the window is not opening a URL; it's just an empty window.
在同一应用程序中，打开在相同域中具有指定URL的窗口确实可行.
From the same application, opening a window with a specified URL in the same domain does work.
推荐答案
基于:
- IE 6/7 Access Denied trying to access a popup window.document
- http://thecodecave.com/2006/07/20/how-to-get-around-access-is-denied-in-a-windowopen-javascript-call/
您遇到的问题是，正在打开的网址必须与正在打开的页面位于同一域中.假定空白网址不会共享其创建者的域.我写了几个快速测试网页，发现了
The problem you are having is that the Url being opened needs to be on the same domain as the page that is opening it. Presumably a blank Url will not share the domain of its creator. I wrote a couple of quick test web pages and found
- 呼叫
var reportWindow = window.open('', newTarget, features);导致访问被拒绝错误. - 与
var reportWindow = window.open('http://google.com', newTarget, features);相同
- 但是在该网站中打开另一个可以渲染的页面
var reportWindow = window.open('WebForm2.aspx', newTarget, features);
- Calling
var reportWindow = window.open('', newTarget, features);resulted in the access denied error. - Same thing with
var reportWindow = window.open('http://google.com', newTarget, features); - But opening up another page in the site which does the rendering does work
var reportWindow = window.open('WebForm2.aspx', newTarget, features);
最后一个弹出窗口，指向执行该代码的WebForm2.aspx:
This last one popped up a window pointing to WebForm2.aspx which executed this code:
window.document.open();
window.document.write('<head>\r\n<title>\r\n...\r\n</title>\r\n</head>');
window.document.write('test<body style="height: 90%;">\r\n<table style="height: 100%; width: 100%;" border="0">\r\n<tr>\r\n<td align="center" valign="middle" style="text-align:center;">\r\n');
window.document.close();
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